Cloth-napping machine



(No Model.)

2 SheetsSheet 1. D. GESSNER. I

CLOTH NAPPING MACHINE.

Patented Nov. 10, 1891.

I-F'L 5-1-14: :n:

as/ an ]Ej A ck m (No Model.) 2 Sheets-Shet 2.

D. GESSNER. CLOTH NAPPING MACHINE.

No. 462,697. P-aitent d N037. 10 1891.

UNITED STATES PATENT OFFICE.

DAVID GESSNER, OF WORCESTER, MASSACHUSETTS.

CLOTH-NAPPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 462,697, dated November 10, 1891 Application filed October 22, 1890. Serial No. 368,838. (No model.)

To all whom it may concern.-

Be it known that I, DAvID GESSNER, of iVorcester, in the State of Massachusetts, have invented a new and useful Improvement in Oloth-Nappin g Machines, of which the following is a specification.

This invention is designed as an improvement on the machine described in an application for Letters Patent of the United States filed by me September 19, 1890, Serial No. 365,513. In the accompanying drawings, Figure 1 is an end view of the machine with the means for driving the napping-rollers omitted for the purpose of clearness of illustration. Fig. 2 is a detail of the mechanism for imparting to the receivingroller of the machine a longitudinal motion. Fig. 3 is a detail of the oilcups shown in Fig. 1 for lubricating the journals of the napping-rollers. Fig. 4 shows the means for driving the napping-rollers. Figs. 5 and 6 are details of parts shown in Fig. 4.

The dotted line 1, Fig. 1, indicates the course of the cloth as it passes through the machine.

2 is the roller, over which the cloth passes as it enters the machine, and which, for the reason described in said application, is to have a longitudinal motion imparted to it. In lieu of the devices for this purpose described in said application, I employ the device shown in Figs. 1 and 2, consisting of a worm 3, splined to the shaft 4 of the roller 2 and engaging with a worm-gear 5, mounted upon a shaft (5, running in bearings fixed to the frame. An eccentric 7 is fixed to the shaft (5 of this wormgear and bears against the diametrically-opposite arms 8 and 9, which are fixed to the shaft 4 by the collars 10 and 11. This shaft 4 is arranged to slide longitudinally in the bearings 12. Now it will be obvious that as the friction of the cloth upon the roller 2 causes the same to revolve, the revolving motion transmitted through the worm 3, the worm-gear 5, and the eccentric 7 will be converted into a longitudinal reciprocating motion in the arms 8 and 9, by which such motion is communicated to the shaft 4 and the roller 2. The cloth being driven as described in said application is, as therein described, guided to the several napping-rollers by the guide-bars 13 to 22, inclusive, said guide-bars being, as shown, arranged outside the orbit of the napping-rollers. Each journal of each napping-roller is provided with a lubricating device, as shown in Figs. 1 and 3, extending toward the center of motion. I will describe one of these lubricating attachments, which will answer for a description of all.

23 is the journal of the napping-roller.

24 is a cup screwed into the bearing of the journal and provided with a passage-way 25. This passage-way or channel is prolonged through the tube 26 and is intended to receive the wick 27. The cup 24 may be made partially of glass, so that its transparency will permit the operator to know whether it is working satisfactorily without removing it.

To provide for cleaning and filling, the cup is made in two parts 24 and 24*, provided with screw-threads for connection and with a flange 2S, bearing a packing 29. When this lubricating device is in the position shownin Fig. 1 and the napping-rollers are moving in their orbit, the centrifugal force of the oil will give it a tendency to flow out of the passage 25, thereby assisting the capillary attraction of thewick 27 in giving an efficient supply to the journal of the napping-roller. The extension of the tube 26 into the interior of the cup will serve to equalize the supply of oil whether the cup be at its lowermost or its uppermost position, and whether the machine be in motion or not. The motion is taken from the main shaft 30 and transmitted for the purpose of driving the nappingrollers (as described in my said application) through a friction-plate 31 and a frictionroller 32, adjustable on the shaft 33, to and from the center of the friction-plate 31 by means of the fork 34, moved by the screw 35. By this means the speed of revolution of the napping-rollers around their own axes is regulated.

In order that the operator may know exactly the position in which to place the friction-roller 32 for the treatment of certain weights of goods, I provide a scale 36, parallel with which the fork 34 will move in the adj ustment of the roller 32. An indicator-finger 37 maybe attached to the hub of the fork 34, as shown.

The napping-rollers are driven by the following mechanism:

38 is a driven belt which drives the pulley 39, mounted upon the shaft 30, independently of the spider which carries the bearings of the napping-rollers.

are pulleys mounted upon the journals of the several napping-rollers, over which runs the belt 41, which is compelled to run truly by flanges on opposite ends of the several pulleys 40. It remains to communicate the motion of the pulley 39 to the belt 41 for. the purpose of driving the napping-rollers in such manner that all of the rollers are continuously driven positively at one and the same speed For this purpose I employ the device shown in Fig. 4 and in detail in Figs; 5 and 6.

42 is a radial arm secured to the pulley 39, projecting radially outward therefrom.

43 and 44 are two arms, which are pivoted at 432 and 433 to the arm 42 and project toward each other so as to occupy a position approximately tangential to the position of the belt 41. The inward movement of these arms is limited by the stops 45 and 46, fixed to the arm 42, and which may be covered with rubber tubing to prevent noise.

To the free ends of the levers 43 and 44 are fixed the steel pins 47 and 48, which project laterally over the path of the pulleys 40. These steel pins should be reduced in diameter opposite the flange of pulley 40 at 49 and 50, so that the belt carried by the pins may rest directly upon the body of the pulleys 40. The belt 41 at one end passes under and around the pin 48 and. at the other end under and around the pin 47, and the respective free ends of the belt are secured to the bars 51and 52' by being turned back and riveted to itself. The pins 47 and 48 of the respective arms 43 and 44 are radially nearer the center of motion of the belt 41 than the pivotal connection of those respective arms with the arm 42, so that the strain exerted by the belt has a tendency to constantly pull the pins 47 and 48 toward the center. This tendency may be aided by the springs 53 and 54, pressing upon the tops of the arms 43 and 44. The tension and adjustment of tension of the belt 41 maybe produced by the movement of the bars 51 and 52, and to this end the bar 51 is mounted in a yoke 55 and the bar 52 in a yoke 56,which yokes maybe drawn from each other by the nuts 57 and 58 on screws projecting from the respective yokes, which nuts bear against the arms 59 and 60 on the arm 42. Now, as already stated,the tension'of the belt 41 tends to pull the arms 43 and 44 toward the center. This tendency will be opposed when the relative position of the rollers, 40 and the pins 47 and 48 is, as shown in" Fig; 4, by the stops 45 and 46; but when in the position shown in Fig. 5 it will be opposed by the pulley 40 itself, which will raise the pins 47 and 48, and consequently the arms 43 and 44, above the stops 45 and 46. There will thus be a slight radial movement of the pins 47 and 48 sufficient to keep the belt 41 constantly bearing against the pulleys 40, which are nearest to those pins, and thus there will be no intermission in the positive driving of the several pulleys 40 at any point of their course.

In order to balance the parts connected with the arm 42, aweighted arm 61 may be mounted diametrically opposite on the pulley 39 as a counterpoise. This belt 41, mounted, as above described, possesses all the advantages of an endless ring, with the added advantages of greater extent of contact with each pulley an d capacity for adjustment.

I do not desire to limit myself to driving the pulley 39 by a belt, nor in fact to the employment of the pulley 39 at all, since the function of this pulley is to connect the arm or piece 42 with the shaft, and of course it may take on a variety of forms and be driven and supported by'a variety of mechanisms; nor do I desire to limit myself to making the belt 41 in a single piece actuated by the single piece or arm 42.

,Although I have referred to thepiece which attaches to the belt as an arm, it is in sub-' stance (dissociated from the form of construction shown) a piece which constitutes a handle or coupling traveling with the belt,- whereby the belt at some part is coupled to the driving mechanism by which it is actuated. The word used to designate the part is immaterial, whether it be piece, or member, or means, since it is intended to refer to a thing which will satisfy any of these terms, connecting the belt with the actuating mechanism.

I do not limit myself to the capacity for relative movement existing between the pins 47 48 and the arm 42. I do not intend to limit myself to the disk and roller mechanism, which is described as a part of the speedvarying mechanism, unless so expressed in the claims.

I claim 1. In a cloth-napping machine, in combination, the series of pulleys connected with the napping-rollers, a belt whereby the same are driven, a member whereby said belt is coupled to the belt-actuating mechanism, and mechanism whereby said member is forced to travel around the said series of pulleys, sub stantially as described.

2. In a cloth-napping machine, in combination, a series of pulleys connected with the napping-rollers, a belt co-operating with the said series, a member whereby said belt is coupled to the beltactuating mechanism, mechanism whereby said member is com,- pelled tomove around said series of pulleys, and adjustable mechanism securing each end of said belt to said member, whereby the tension of said belt may be regulated, substantially as described.

3. In a cloth-napping machine, in combination, a series of pulleys by which the napping-rollers are driven, a belt co-operating with the same, a member secured to said belt whereby the same is coupled to the belt-actuating mechanism, mechanism whereby said member is supported with a capacity for movement to and from the center of motion of the belt, and mechanism whereby the same is compelled to move around said series of pulleys, substantially as described.

l. In a cloth-napping machine, in combina tion, a series of pulleysby which the napping-rollers are driven, a belt cooperating therewith, a member connected with said belt whereby the same is coupled with the beltaotuating mechanism, mechanism whereby said member is supported With a capacity for movement to and from the center of motion of the belt, mechanism whereby said member is actuated toward the center as it passes between each pair of pulleys, and mechanism whereby said piece is compelled to move around said series of pulleys, substantially as described.

5. In a cloth-napping machine, in combina tion, a series of pulleys by which the napping-rollers are driven, a belt co-operating therewith, a member connected with said belt whereby the same is coupled with the beltactuating' mechanism, mechanism whereby said member is supported with a capacity for movement to and from the center of motion of the belt, mechanism whereby said member is actuated toward the center as itpasses between each pair of pulleys, a stop whereby the inward movement of said member is limited, and mechanism whereby said piece is compelled to move around said series of pulleys, substantially as described.

6. In a cloth-napping machine, in combination, a series of pulleys by which the napping-rollers are driven, a belt co-operating therewith, a member connected with said belt whereby the same is coupled with the beltactuating mechanism, mechanism whereby said member is supported with a capacity for movement to and from the center of motion of the belt, a spring whereby said member is pressed toward the center as it passes between each pair of pulleys, and mechanism whereby said member is compelled to move around said series of pulleys, substantially as described.

7. In a cloth-napping machine, in combination, a series of pulleys by which the napping-rollers are actuated, a belt co-operating therewith, a member secured to said belt whereby the same is coupled to the belt-actuating' mechanism, an arm upon which said member is mounted and inclining slightly inward from a tangential plane whereby the direction of the strain of the belt upon said member comes inside the pivot of said arm, and mechanism whereby said member is compelled to move around said series of pulleys, substantially as described.

8. In a cloth-napping machine,in combination, a series of pulleys by which the napping-rollers are actuated, a belt co-operating therewith, the head containing the bearings of the napping-rollers, the shaft upon which said head revolves, a pulley mounted upon said shaft and a member whereby said pulley is coupled to said belt, substantially as described.

9. In a cloth-napping machine, in combination, the series of napping-rollers, the head carryins the bearings for the same, and a series of oil-cups, one for each of said bearings, located toward the center of the head, whereby the journals of said rollers are lubricated, substantially as described.

10. In a cloth-napping machine, in combination, the series of napping-rollers, the head carrying the bearings of the same, the guidebars whereby the cloth is guided to said rollers from outside the orbit thereof, and a series of oil-cups, one for each bearing, located radially inside the same, substantially as described.

11. In a cloth-napping machine,in combination with the bearing of a napping-roller, an oil-cup located radially inside the same and provided with a wick-tube extending radially into the interior of said cup from said bearing,substantially as described.

12. The rotating head containing at its periphery a journal-bearing, in combination with an oil-cup cover arranged radially inside of said journal-bearing and having a channel for the supply of the journal with oil, and a cup-body tangentially secured to said cup -cover, substantially as described, whereby the cover may remain in place on the bearing, while the cup-body is removed therefrom for the purpose of filling.

13. In a cloth-napping machine, in combination with the cloth-feed roller and its shaft 4, an eccentric 7, mechanism interposed whereby said eccentric is actuated by the rotation of said shaft, and other mechanism interposed, whereby the motion of said eccentric is in turn transmitted to the reciprocation of said shaft, substantially as described.

DAVID GESSNER.

Witnesses:

JAMES T. LAW, LIVINGSTON GIFFORD. 

